| Answer | Crossword Clue |
|---|---|
| ANT | One with tunnel vision? |
| ALP | One above the Lotschberg Tunnel |
| ALP | St. Gotthard Tunnel passes through one |
| TRAM | One going through a tunnel, perhaps |
| burrower | one that burrows (to dig a hole of tunnel in the ground) |
| burrowers | BURROWER, one that burrows (to dig a hole of tunnel in the ground) |
